Variation in Partridge Calls across Mount Corydallus

Notes

1. §181.1οἱ Ἀθήνησι ... πέρδικες ... οἱ δʼ ἐπέκεινα — The phrase "οἱ Ἀθήνησι πέρδικες" (the partridges in Athens) serves as the main subject, which is then divided by the contrast between those on "this side" and those on "the other side" (οἱ δʼ ἐπέκεινα). The article "οἱ" and the postpositive particles coordinate this spatial subdivision within the same species.
2. §181.1ἐπὶ τάδε τοῦ Κορυδαλλοῦ — The phrase "ἐπὶ τάδε" functions prepositionally with the genitive "τοῦ Κορυδαλλοῦ" to mean "on this side of Corydallus." Corydallus is a mountain range in western Attica, situated toward the border with Megaris.
3. §181.1κακαβίζουσιν / τιττυβίζουνσιν — Both are onomatopoeic verbs denoting bird cries. The phonetic contrast between "κακαβίζω" (to cackle/cluck, characteristic of partridges) and "τιττυβίζω" (to chirp/twitter) illustrates a geographical variation in animal vocalization analogous to human dialects.